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Old 09-13-2011, 01:44 PM   #1
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Air bags

I am thinking about buying a Damon Ultrasport 3680 Diesel pusher. When you back into or pull out of a garage does the the air bags have to be up?

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Old 09-13-2011, 02:31 PM   #2
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Welcome to the forum and congrats on your upcoming purchase.

I know that many folks have to dump air to get their rigs into their enclosures but think it depends on the particular rig so hopefully someone with that knowledge will chime in soon.

Glad you found us.


Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.

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Old 09-13-2011, 06:06 PM   #3
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Originally Posted by jjb4100 View Post
I am thinking about buying a Damon Ultrasport 3680 Diesel pusher. When you back into or pull out of a garage does the the air bags have to be up?
My air bags will inflate anytime I put it into gear. My friends Alfa will not. Don't know why, but I don't think it should not be driven with the bags deflated.
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Old 09-13-2011, 06:14 PM   #4
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Freightliner advises against driving your coach with the air bags deflated. This is due to the geometry of the drive train when the air bags are deflated. The short drive shaft on a diesel pusher may actually arch up slightly with the bags deflated, which could cause the drive shaft knuckle to interfere with the frame or flooring, causing damage to the drive shaft.

Note that this problem is more severe with FL chassis's with the old wishbone rear control arms, which caused the drive shaft to angle up much more when the air bags were deflated. The newer suspensions which are connected to the frame both in front and behind of the axle does not change the drive shaft geometry as much when the air bags are deflated.

With all that said, I have heard of many people who deflate their air bags and then 'creep' into their storage building with no harm done.
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